However, the problem is what if Blake Sims struggles, Coker gets in and struggles too??? Who do we go with? Senior or guy with more eligibility and higher ceiling?
Honestly, I don't think you can pull Sims if he struggles. The coach has to sell out to his starter. Otherwise, the QB is going to be scared of making a mistake and play tight. You have to allow him to make a mistake without fear of losing his job.
Think South Carolina 2008 when Spurrier never really decided between Smelley and Garcia. He just played whoever was hot. Neither got in a rhythm and they both played tight all year. They went 7-6. Both Smelley and Garcia had their worst statistical seasons.
I think Florida in 2006 is what you need to do if you have 2 capable starters - have them each play a specific role. Chris Leak never feared losing his job. But Tim Tebow had a special role on the team that he filled.
We either sell out to one QB, or we give them both special roles. But, I think, barring a complete fall out, you pick a QB to start and you ride him to the end.